Description Class II malocclusion “The relative mesio-distal relations of the jaws and dental arches are abnormal, where the mandibular teeth occlude the maxillary teeth distal to its normal position.” – Angle 1900 There are two divisions: Class II div 1 – the upper incisors are proclinedThe upper arch is usually narrow. It can be accompanied with a lower lip trap and airway compromise. Class II div 2 – the upper incisors are retroclinedThe upper arch is usually normal or broad in width. There is usually hyperactive lip muscles and normal airways. Go back Pages: 1 2 3 4 5 6